The math problem was a _ _ _ _ _ _ _ _ _ , but Ben found the answer.

NOUN. 'For animals the most important ingredient in air is _ _ _ _ _ _ ."

VERB. To look at something closely to see all its details.

VERB. 1. To scrape or cut the surface of something with something sharp such as nails. "The cat liked to _ _ _ _ _ _ _ the arm of the chair." 2. To cancel or strike out something off a list. "I was able to _ _ _ _ _ _ _ milk of my list."

VERB. To succeed at doing something; be able to. 'Mom did _ _ _ _ _ _ to stop the leak before too much water went on the floor.'

ADJECTIVE. "Animals that only come out at night are said to be _ _ _ _ _ _ _ _ _ ."

ADJECTIVE. Having, showing, or giving good health.

ADJECTIVE. Without a fault or mistake. VERB. To bring perfection or completion

NOUN. That last part of a story, or an argument.

VERB. To be or give enough to meet a need, desire, or demand. "Ben has to _ _ _ _ _ _ _ all the requirements to earn a good grade."

NOUN. A desire for food